Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology the flower dicot seed structure of monocot and dicot seed the seed

Caruncle is derived from

  1. Peduncle

  2. Cotyledon

  3. Outer integument

  4. Inner integument
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
In plants,Caruncle is an outgrowth near the hilum on the seeds of some plants of family Euphorbiaceae (like Hevea ). Outer integument is the outermost part of the ovule . During development of the ovule, the outer integument differentiates into different layers of seed coat. Caruncle is also derived from outer integument.
So, the correct option is 'Outer integument'
Multiple choice biology the flower dicot seed structure of monocot and dicot seed the seed

Pea nut or ground nut oil is obtained from

  1. Lathyrus odoratus

  2. Pisum sativum

  3. Arachis hypogea

  4. Brassica juncea
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Peanut (Arachis hypogaea) oil is the refined fixed oil obtained from the seed kernels of Arachis hypogaea. Hydrogenated peanut oil, peanut acid, and peanut glycerides are all derived from peanut oil. It is light yellow-colored oil and extremely stable, with nourishing and protective properties.

Multiple choice biology seed dicot seed structure of monocot and dicot seed the seed

In which of the following, multiciliated/multiflagelated
anthropoids are present

  1. Riccia and Funaria

  2. Pteris and Cycas

  3. Riccia and Cycas

  4. Marchantia and Riccia
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In pt eris antheridum is having (about 32) multiflagellated, coiled (2 - 3 coils) anthropoids or spermatozoids.

Multiple choice biology seed dicot seed structure of monocot and dicot seed the seed

X is scar on the seed through which the developing seeds were attached to the fruit; above the X is a small pore called Y.
Identify X and Y and select the correct option.

  1. X - Micropyle, Y - Hilum

  2. X - Hilum, Y - Micropyle

  3. X - Testa, Y - Tegmen

  4. X - Chalaza, Y - Micropyle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

X - Hilum - it is the point of attachmnet of the ovule to its stalk or the funicle

Y - Micropyle, the pore or the opening of the ovule, where the integuments do not cover the ovule. It is an opening for the entry of the pollen tube during fertilization.
So, the correct answer is (b).

Multiple choice biology skeleton and movements introduction to locomotion skeleton and joints movement in animals

Select the correct option. 

  1. Locomotion is shown by multi cellular organisms

  2. Paramecium uses tentacles for locomotion

  3. Hydra uses cilia for locomotion

  4. Kangroo cannot walk backward
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Locomotion is a feature exhibited by both unicellular and multicellular organisms. 
  • Paramecium uses cilia for its locomotion and Hydra uses somersaulting or gliding movement for its locomotion. 
  • Kangaroos can't walk backward. An unusual feature of the kangaroo is that it cannot walk backwards. This is because of its unusually shaped hind legs and bulky tail which can grow up to four feet long.

So the correct option is 'Kangaroo cannot walk backward'.

Multiple choice biology skeleton and joints introduction to locomotion movement in animals skeleton and movements

Which of the following statements is not true?

  1. The cartilage is not as hard as bones.

  2. A snake moves by making loops.

  3. All animals show exactly similar movements.

  4. Snails move with the help of their muscular feet.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

All animals exhibit different patterns of movements. The movements differ with differences in the types of joints present in the animals. Example: In birds, the forelimbs are modified to result in wings, which leads to flying movement. In case of kangaroos, the hind limbs are modified such that they contain flexible muscles resulting in their jumping movement. In humans, the legs are modified so that they walk with two limbs only, as opposed by other vertebral mammals like dogs, cats etc. which have 4 limbs.

Hence the statement, 'all animals show exactly same movements' is false.